how much dna do we share with a banana

Humans share about 50 to 60 percent of their genes with bananas. However, this does not mean that the same percentage of DNA is shared—it's more accurate to say that around 1 percent of the entire DNA sequence is similar. The 50-60 percent figure refers to a proportion of genes that have homologs or equivalents in bananas, and these genes mostly code for basic cellular functions common to many living organisms. When comparing protein sequences from these genes, the average similarity is about 40 percent. Overall, around 17 to 25 percent of human genes have orthologs in bananas, reflecting shared ancient biological functions conserved for over 1.5 billion years of evolution.